THE FIRST RENEWABLE ENERGY TRIPLE HYBRID GENERATION SYSTEM IN THE WORLD

Yasuyuki NEMOTO (Ashikaga Inst. of Tech.)

Yoshifumi NISHIZAWA (Ashikaga Inst. of Tech.)

Izumi USHIYAMA (Ashikaga Inst. of Tech.)

The importance of renewable energy with The importance of renewable energy with low impactlow impact on the environmenton the environment has been increasing in recent years. has been increasing in recent years.

IntroductionIntroduction

Because of the need to prevent problems such as Because of the need to prevent problems such as global warming, global warming,

However, the actual introduction of these systems has However, the actual introduction of these systems has been hindered been hindered because the power source of renewable energy is because the power source of renewable energy is unstable. unstable.

Triple hybrid renewable energy generation system

In order to stabilize the power source,

Triple hybrid renewable energy generation system

PurposePurpose

WindWind and SolarSolar energy which depend on weather conditions

A. I. T has carried out the demonstrative study of this system.

BiomassBiomass energy which can be stored and its input regulated

Triple hybrid renewable energy generation system

Triple Hybrid Renewable Energy Triple Hybrid Renewable Energy Generation SystemGeneration System

Overview of the systemOverview of the system

BiomassBiomassGeneratioGenerationnSystemSystem

PVPVSystemSystem

WindWindTurbineTurbineGeneratorGenerator

WTG SystemWTG System

Wind turbine generator Wind turbine generator (SUBARU 15/40)(SUBARU 15/40)

Specifications of the WTGSpecifications of the WTG

3φ 200[V]Grid voltage

50[Hz]Frequency

Interior typePCS

2 division typeTower

87[rpm]Max. rotational speed

58[rpm]Rated rotational speed

60[m/s]Survival wind speed

25[m/s]Cut-out wind speed

2[m/s]Cut-in wind speed

11[m/s]Rated wind speed

21[m]Hub height

15[m]Rotor diameter

40[kW]Rated power

SUBARU 15/40Model

3φ 200[V]Grid voltage

50[Hz]Frequency

Interior typePCS

2 division typeTower

87[rpm]Max. rotational speed

58[rpm]Rated rotational speed

60[m/s]Survival wind speed

25[m/s]Cut-out wind speed

2[m/s]Cut-in wind speed

11[m/s]Rated wind speed

21[m]Hub height

15[m]Rotor diameter

40[kW]Rated power

SUBARU 15/40Model

PV SystemPV System

PV module (HIT-190B2)PV module (HIT-190B2)3φ 200[V]Grid voltage

50[Hz]Frequency

30°Gradient angle

20.59[kW](190[W]× 108)

Max. output / system

14[kg]Weight / module

1,319× 894× 35Dimension / module

3.75[A]Short circuit current

67.5[V]Open circuit voltage

3.47[A]Maximum current

54.8[V]Maximum voltage

190[W]Max. output / module

HIP-190B2Model

3φ 200[V]Grid voltage

50[Hz]Frequency

30°Gradient angle

20.59[kW](190[W]× 108)

Max. output / system

14[kg]Weight / module

1,319× 894× 35Dimension / module

3.75[A]Short circuit current

67.5[V]Open circuit voltage

3.47[A]Maximum current

54.8[V]Maximum voltage

190[W]Max. output / module

HIP-190B2Model

Specifications of Specifications of the PV modulethe PV module

Biomass Generation SystemBiomass Generation System

Biomass

-> Gasification by partial combustion

-> Flammable gas (main component = CO)

-> Output from engine generator

Principle

Characteristic

- High efficiency

- Compact system

-> Combined with air and sent to the IC engine

Cyclone

Filter SeparatorHopper

Blower(at starting)

GasifierFlowmeter

Thermometer

Filter

Thermometer

Cooler

Radiator

Mixer

Gas meter

Air intake

Silencer Heatexchanger

Generator

Rotary Engine

Radiator

Exhaust

Cyclone

Filter SeparatorHopper

Blower(at starting)

GasifierFlowmeter

Thermometer

Filter

Thermometer

Cooler

Radiator

Mixer

Gas meter

Air intake

Silencer Heatexchanger

Generator

Rotary Engine

Radiator

Exhaust

Biomass Generation Biomass Generation SystemSystem

3φ 200[V]Grid voltage

50[Hz]Frequency

2 pole/3φ 200VGenerator

6.9～15.7[kg/h]Wood briq.

6.4～14.5[kg/h]Charcoal

Fuel consumption (expected)

1 : 1Air-fuel ratio

9.7Compression ratio

654[cc]× 2Displacement

Water coolingCooling

Rotary(2 rotor)Type

13BModel of Engine

3φ 200[V]Grid voltage

50[Hz]Frequency

2 pole/3φ 200VGenerator

6.9～15.7[kg/h]Wood briq.

6.4～14.5[kg/h]Charcoal

Fuel consumption (expected)

1 : 1Air-fuel ratio

9.7Compression ratio

654[cc]× 2Displacement

Water coolingCooling

Rotary(2 rotor)Type

13BModel of Engine

0

1000

2000

3000

4000

5000

6000

J F M A M J J A S O N D

Expe

cted

ene

rgy

prod

uctio

n[kW

h]

PV

Simulation for the Expected Power Simulation for the Expected Power ProductionProduction

4,939kWh4,939kWh

（（WTG & PVWTG & PV ））

Wind

0

1,000

2,000

3,000

4,000

5,000

6,000

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

[kW

h]

Wind PV Biomass

Power Production Power Production （（ TargetTarget））

4,939kWh/Monthly4,939kWh/Monthly

System HistorySystem History

2004 ／ 3 　　 Established

2004 ／ 4 　　 has been operating since last April (The data has been collected. )

This system was

Power Production Power Production （（ 2004 - 20052004 - 2005））

0

500

1,000

1,500

2,000

2,500

3,000

3,500

4,000

4,500

5,000

Apr May J un J ul Aug Sep Oct Nov Dec J an Feb Mar Apr J un J ul

Ener

gy P

rodu

ctio

n[kW

h]

BiomassPVWind

2004 2005

0

500

1,000

1,500

2,000

2,500

3,000

5 月 6 月 7 月 8 月 9 月 10 月 11 月 12 月 1 月 2 月 3 月 4 月

発電

量[k

Wh] 風力発電実績

風力発電予想

Ou

tput

[kW

]O

utp

ut[k

W]

MM JJ JJ AA SS OO NN DD JJ FF MM AA

Act. OutputAct. Output

Est. OutputEst. Output

Est. Output and Act. Output of WTGEst. Output and Act. Output of WTG

（（ May 2004 May 2004 ～～ Apr. Apr. 20052005 ））

Output and Wind VelocityOutput and Wind Velocity

（（ May 2004 May 2004 ～～ July July 20052005 ））

05

101520

253035

4045

0 5 10 15 20

Wind Velocity [m/ s]

Out

put[

kW]

Power Curve of WTGPower Curve of WTG

（（ Apr. 2004 Apr. 2004 ～～ June June 20052005 ））

0

5

10

15

20

25

30

35

40

45

0 5 10 15 20

Wind Velocity [m/ s]

Ou

tpu

t [k

W]

Power Curve of WTGPower Curve of WTG

Control Program was changed in July 2005Control Program was changed in July 2005

0

500

1,000

1,500

2,000

2,500

3,000

5月 6月 7月 8月 9月 10月 11月 12月 1月 2月 3月 4月

[kW

h]

発電

量

太陽光発電実績太陽光発電予測

Est. Output and Act. Output of PVCEst. Output and Act. Output of PVC

（（ May 2004 May 2004 ～～ July July 20052005 ））

MM JJ JJ AA SS OO NN DD JJ FF MM JJ

Ou

tput

[kW

]O

utp

ut[k

W]

Act. OutputAct. Output

Est. OutputEst. Output

Manage to Vibration and Noise Manage to Vibration and Noise ProblemsProblems

Remodel the GeneratorRemodel the Generator

WTGWTG

WTGWTG

Repair work for the GeneratorRepair work for the Generator

Biomass GBiomass G

Failure of the coupling by Excessive TorqueFailure of the coupling by Excessive Torque

Biomass GBiomass G

Effect of Unsuitable CombustionEffect of Unsuitable Combustion

Tar sticking (low temp.)Tar sticking (low temp.)Choking of Furnace (high temp.)Choking of Furnace (high temp.)

Clinker (about 1200℃Clinker (about 1200℃））

Deformation of fuelDeformation of fuel

•The proof examination of the triple hybrid generation The proof examination of the triple hybrid generation system has gone smoothly, however some problems have system has gone smoothly, however some problems have occurred.occurred.

•We are working on improvements or a re-design to We are working on improvements or a re-design to solve these problems.solve these problems.

•We are planning to construct a system that can supply We are planning to construct a system that can supply electricity consistentlyelectricity consistently throughout the year in the future.throughout the year in the future.

Concluding RemarksConcluding Remarks